This disclosure relates to video coding and more particularly to techniques for performing a position-dependent intra prediction sample filtering process. In one example, a method of coding video data comprises: deriving an intra prediction angle parameter, deriving an inverse angle parameter based on the intra prediction angle parameter: for a prediction mode included in a defined set of prediction modes, setting a value of a scale variable based on the derived inverse angle: and performing a position-dependent intra prediction sample filtering process using the value of a scale variable.
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5. The device of claim 3, wherein the device is a video decoder.
A video decoder processes encoded video data to reconstruct and display video frames. A challenge in video decoding is efficiently managing memory and computational resources while maintaining high-quality video output. This invention addresses this problem by incorporating a specialized memory management system within the video decoder. The system dynamically allocates and deallocates memory blocks based on the decoding requirements of different video frames, optimizing resource usage. It includes a buffer controller that monitors memory usage and prioritizes critical decoding tasks, ensuring smooth playback even under high computational loads. The system also integrates a predictive algorithm that anticipates memory needs for upcoming frames, reducing latency and preventing buffer overflows. Additionally, the decoder employs a hardware-accelerated compression module to minimize memory footprint without sacrificing decoding speed. This approach enhances efficiency, reduces power consumption, and improves overall video playback performance. The invention is particularly useful in real-time applications such as streaming services, video conferencing, and mobile devices where resource constraints are significant.
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June 24, 2020
June 11, 2024
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